Optimizing PSMA scintigraphy for resource limited settings – a retrospective comparative study

Cancer Imaging

Table 1 Lymph node metastases detection rates on planar, SPECT, and SPECT/CT (n = 95)

	SPECT/CT^b	Planar	SPECT	p-value
Positive cases^a	11 (11.6%)	5 (5.3%)	8 (8.4%)	0.12 to 0.46
Negative cases	83 (87.4%)	71 (74.7%)	75 (78.9%)	0.03^d to 0.49
False positive	N/A	1 (1.1%)^b	1 (1.1%)^b	N/A
Equivocal cases	1 (1.1%)^c	15 (15.9%)	10 (10.5%)	< 0.001^e to 0.27

^a Positive cases = locoregional + distant nodal metastases
^b SPECT/CT assessment used as reference method
^c Abnormal uptake was present in a lymph node, but it was equivocal for metastatic disease
^d Significant difference found for SPECT/CT vs. planar
^e Significant difference found for SPECT/CT vs. planar and SPECT/CT vs. SPECT

ISSN: 1470-7330